BLM21BD421SN1D Ferrite bead for signal line filtering. 420 Ω impedance at 100 MHz, 300mA current, 0805 package.
Mfr Part #:

BLM21BD421SN1D

Available from 2 distributors
Mfr Name: Murata
Murata
Ferrite bead for signal line filtering. 420 Ω impedance at 100 MHz, 300mA current, 0805 package.
Total Stock: 3,726 pcs
$ Price Range: $0.04 - $0.16

BLM21BD421SN1D Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1,863 pcs
1863 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,863 pcs
1863 pcs On Request 1 On Request On Request On Request On Request On Request

BLM21BD421SN1D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current Rating (Max)
DC Resistance (DCR) (Max)
Filter Type
Height (Max)
Impedance @ Frequency
Length
Mounting Type
Number of Lines
Operating Temperature
Tape & Reel
Width

BLM21BD421SN1D Description

Short technical summary and product information.

This Murata BLM21BD421SN1D is a chip ferrite bead designed for signal line filtering. It offers a nominal impedance of 420 Ω at 100 MHz, providing effective suppression of high-frequency noise. With a maximum DC resistance of 300 mΩ and a current rating of 300 mA, it is suitable for general filtering applications.

 

The component is housed in an 0805 (2012 Metric) surface-mount package, measuring 2.00mm x 1.25mm with a maximum height of 1.45mm. It operates over a wide temperature range from -55°C to 125°C, making it suitable for various environments.

 

This single-line ferrite bead is commonly used in power lines and signal lines to attenuate EMI. The BLM21 series is known for its high impedance characteristics in a compact footprint.

BLM21BD421SN1D Quick Information

Product Type: Ferrite Bead
Series: BLM21
Canonical Name: Murata BLM21BD421SN1D Ferrite Bead, 420 Ω at 100 MHz, 300mA, 0805
Subcategory: Signal Line Ferrite Bead

BLM21BD421SN1D Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BLM21BD421SN1D Estimated Pricing

Qty Low High
1+ $0.16 $0.16
10+ $0.11 $0.11
25+ $0.10 $0.10
50+ $0.09 $0.09
100+ $0.08 $0.08
250+ $0.07 $0.07
500+ $0.06 $0.06
1,000+ $0.05 $0.05
4,000+ $0.04 $0.04

Estimated market price range - modelled values for guidance only, not live distributor offers.

BLM21BD421SN1D Features

  • Single-line ferrite bead for signal filtering.
  • 420 Ω impedance at 100 MHz.
  • 300 mA maximum current rating.
  • 0805 surface-mount package.
  • Operates from -55°C to 125°C.

BLM21BD421SN1D Applications

  • Used in consumer electronics for EMI suppression.
  • Suitable for power supply noise filtering.
  • Ideal for signal lines in communication equipment.
  • Applicable in industrial control systems.

BLM21BD421SN1D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the impedance of the BLM21BD421SN1D ferrite bead?

420 Ω at 100 MHz.

What is the DC resistance?

Maximum 300 mΩ.

What is the current rating?

Maximum 300 mA.

What is the package size?

0805 (2012 Metric) - 2.00mm x 1.25mm.

What is the operating temperature range?

-55°C to 125°C.

Is this part RoHS compliant?

Listed as RoHS3 Compliant (unverified).

What is the mounting type?

Surface Mount.

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